(1) Reduce the burden on the stomach. This is easy to understand. When you are hungry, you can rest the digestive tract that has been running at a high load for a while.
(2) promoting digestive function. It is easy to understand that the digestive function of gastrointestinal tract is strengthened after hunger.
(3) It is necessary to catch chickens during injection, eye drops or vaccination, and control the feed for two to three hours, which can greatly reduce the pressure caused by catching chickens. The mechanism of this aspect is that the main metabolism of chickens is digestion when they are full, so the blood in digestive system is much higher than that in fasting, while the blood supply in other systems is reduced, which leads to the decline of anti-stress ability.
(4) Proper eating control can protect the newly recovered gastrointestinal function from being damaged again when the food intake increases too fast after illness. This situation is often encountered in the actual breeding process. After illness, the food intake increased greatly, but it did not increase after two days. .
(5) Conducive to defecation. Stool refers to the feces accumulated in the intestine that has not been discharged after the normal excretion time. Its color is generally dark green, black or brown, turbid and smelly, which is quite different from normal stool. Farmers all know that chickens often excrete brown manure in the morning, commonly known as sugar chicken manure. Its essence is a kind of shit, which is the nature of chickens. Although broilers have been improved for many years, they still can't get rid of this natural nature. The longer the stool stays in the body, the greater the harm to the body, and hunger is conducive to the discharge of stool.
(6) Recently, scientists found that mitochondria in cells can not only produce ATP, an energy carrier necessary for cell metabolism, but also produce a certain proportion of peroxide, which can reduce the body's resistance. When hungry, the ratio of ATP to peroxide produced by mitochondria increases, that is, peroxide decreases, and enzymes that inhibit peroxide can also be produced. The level of peroxide in the body decreases and the immune ability of the body increases.
2. How to control materials
(1) Material control should be carried out randomly, and the daily material control time is not fixed. In the early years, I always thought that reasonable light control could control materials. Now that this understanding has changed, we can't deny the effect of intermittent lighting. It's just that after intermittent lighting in the henhouse, the chickens will quickly adapt completely and won't feel too hungry. So now I advocate irregular and irregular material control, and the more irregular, the better. This will make chickens feel more hungry and give full play to the health care function of hunger.
(2) The implementation times of material control. Although feed control has many positive effects and greatly promotes health, chickens will be healthy as long as they eat 60% of the normal amount every day, but the ultimate goal of raising chickens is to make money, not to survive. Too much material control will inevitably affect the growth and production performance of chickens. Therefore, material control should not be too frequent, about one to two hours at a time. How to control light in broiler breeding? You can do it once every two days from the third grade, once every two to three days in the middle, once every three to four days after 30 days, or you can not do it. However, it is recommended to wait until the bucket is completely eaten. Laying hens can postpone feeding for one hour irregularly.
(3) Material control should be gradual. It is the most fundamental way to avoid any stress to control the feed for a short time at first and gradually increase it so that chickens can have an adaptation process.
3, chicken beak broken mouth related knowledge
(1) Beak-breaking Purpose: Chickens have pecking habits, especially those raised in open henhouses. Young pecks include feather pecking, anal pecking, wing pecking and toe pecking. From light to disability to severe death. Therefore, chickens raised in open henhouses generally have to break their mouths. Broken beaks can also save feed and reduce unnecessary deaths.
(2) The reasons why chicks peck: There are many and complicated reasons, such as unbalanced diet, high density, poor ventilation, high temperature, water shortage and strong light. The main measure to prevent chickens from pecking is to break the beak of birds.
(3) beak-breaking time: the beak-breaking time of broilers is generally before the age of 7 days. This can save manpower, reduce costs, reduce stress and peck early.
(4) Beak-breaking method: Beak-breaking is to cut off a part of the upper and lower beaks of the chicken with the help of a hot blade. Generally, a special beak cutter is used. The aperture of the beak cutter in infancy is 4.4 mm at 7 ~ 10 and 4.8 mm at 7 ~ 10. The way to break the beak is to hold the chicken leg with your left hand, the chicken with your right hand, the thumb of your right hand on the top of the chicken's head, and the forefinger on the swallow's body. Make the chicken's tongue contract with a little force, choose a suitable gap and cut it off 2 cm away from the nostril. When burning, the blade rolls around the beak to flatten the corners of the mouth, which can prevent the outer edge of the beak from growing again. If the beaks are not flattened, 5% ~ 10% of adult chickens will grow beaks again.
(5) Selection of beak cutter: It is recommended to use ultra-high temperature fine beak cutter, which has good quality, high efficiency, long durability and little stress response to chickens.